Inference of apparent mobility of charge carriers in potymeric materiais by means of space charge measurements performed during depolarization is presented in this paper. New expressions are proposed here, which are alternative to those already developed in a previous work, both applicable to space charge quantities measured during depolarization. These expressions are applied to the results of space charge measurements performed on unaged and aged XLPE insulation for HVDC cables. It is shown that the two approaches provide close apparent mobility estimations (as a function of depolarization time), which also agree with some literature data. Hence, it can be speculated that the results thus obtained support the validity of both approaches.
Mobility estimation in polymeric insulation through space charge profiles derived by PEA measurements / Alison J.M.; Mazzanti G.; Montanari G.C.; Palmieri F.. - STAMPA. - (2002), pp. 35-39. (Intervento presentato al convegno IEEE Conference on Electrical Insulation and Dielectric Phenomena (IEEE CEIDP) tenutosi a Cancun, Messico nel ottobre 2002).
Mobility estimation in polymeric insulation through space charge profiles derived by PEA measurements
Mazzanti G.;Montanari G. C.;Palmieri F.
2002
Abstract
Inference of apparent mobility of charge carriers in potymeric materiais by means of space charge measurements performed during depolarization is presented in this paper. New expressions are proposed here, which are alternative to those already developed in a previous work, both applicable to space charge quantities measured during depolarization. These expressions are applied to the results of space charge measurements performed on unaged and aged XLPE insulation for HVDC cables. It is shown that the two approaches provide close apparent mobility estimations (as a function of depolarization time), which also agree with some literature data. Hence, it can be speculated that the results thus obtained support the validity of both approaches.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
